How do you explain adding and subtracting negative numbers?

Answer 1

-3 + 2 = -1

-2 + 3 = 1

-3 + -2 = -5

-2 + -3 = -5

-5 - (-2) = -5 + 2 = -3

-2 - 3 = -2 + -3 = -5

Answer 2

Adding a negative number is equivalent to subtracting a positive number. For example, adding -3 is the same as subtracting 3. Subtracting a negative number is equivalent to adding a positive number. For example, subtracting -3 is the same as adding 3. The rule to remember is that when you have a negative sign in front of a number, it actually changes its sign.